Which is the best example of a question that could be used to develop a testable hypothesis?

The typical size of a bacterium is <br> A. 1 nm<br> B. 10 nm<br> C. 1000 nm<br> D. 1 km

mestny [16]

Answer: 1000 nm

Explanation:

Bacteria are the type of biological cell. They constitute a large domain as they are found every where on the earth.

These are few micrometer in length which means 200-700nm . It depends on the type of the bacterial cell. The bacteria are the first organism that appeared on earth.

They are found in water, on land, desert, hydro thermal vent, snow et cetera. These are variable in shape.

5 0

4 years ago

True or false

gregori [183]

I think true don't count me 100 percent

6 0

3 years ago

Although cellular respiration involves many steps, the whole process can be represented by a single equation. A + B → C + D + E

Deffense [45]

Answer:

A: glucose

B: oxygen

C: carbon dioxide

D: water

E: ATP

I just took the test and it was right

3 0

3 years ago

Read 2 more answers

1. What are the independent and dependent variables in each of the experiments?

Dafna1 [17]

The independent variables are temperature, airflow, and light and the dependent variable in each of the experiments is evaporation.
The schematic representation in the diagram helps in the understanding of the setup for the experiments.
The level of temperature, the rate of airflow, and the intensity of light must be controlled in the experiments.
A person will not be confident in experiment 3 results as the temperature is the independent variable that alters the results of evaporation.

<h3>What are the four foremost factors of a managed test?</h3>

When possible, scientists take a look at their hypotheses through the use of managed experiments. A managed test is a systematic take look at executed below-managed conditions, which means that simply one (or a few) elements are modified at a time, even as all others are saved consistently. We'll appear carefully at managed experiments within side the subsequent section.

In the three experiments, the dependent variable is evaporation, as it changes with the change in another variable.

The independent variable in experiment 1 is temperature, experiment 2 is airflow, and experiment 3 is light.

The experiment can be understood better with the representation of the schematic that shows the setup to analyze how the experiment was performed. Therefore the diagram must add the schematic of the experiment.

The controlled items in the experiment are the variables that are set at the particular unit to form the result. the controlled item in experiment 1 is temperature, experiment 2 is airflow from the fan, and experiment 3 is the intensity of light.

The result of experiment 3 is based on the dependence on the intensity of light keeping temperature constant and controlled. If the temperature is not controlled in the experiment then it may lead to an alteration in the results as it depends on both light and temperature.

The flow chart for the increase in pressure affecting the evaporation is given in the image attached.